/*
 * Copyright 2021-2022 Alibaba Group Holding Ltd.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package com.aliyun.fastmodel.core.tree.statement.select.order;

/**
 * Desc:
 *
 * @author panguanjing
 * @date 2020/11/4
 */
public enum NullOrdering {
    /**
     * first
     */
    FIRST,
    /**
     * last
     */
    LAST,
    /**
     * undefined
     */
    UNDEFINED;

    public static NullOrdering getByCode(String text) {
        NullOrdering[] nullOrderings = NullOrdering.values();
        for (NullOrdering nullOrdering : nullOrderings) {
            if (nullOrdering.name().equalsIgnoreCase(text)) {
                return nullOrdering;
            }
        }
        throw new IllegalArgumentException("can't find the ordering with code:" + text);
    }
}
